I worked besides my wife on some protein folding problems. People often want to know why it is so expensive. I unusual describe it as, someone gives you all Le

I worked besides my wife on some protein folding problems. People often want to know why it is so expensive. I unusual describe it as, someone gives you all Lego pieces in a Lego box. The job of the folding algorithm is, to re-create what's on the picture of the package without looking. I think it's easy to see, even if you only had 2 Lego bricks, that you have quite a lot of option to put the 2 bricks together. That grows quickly the more bricks you have.